Improvement in self-acting blow-pipe lamps



NITED STATES PATENT Ormea'.

D. W. O. MOCLOSKEY, OF NEW YORK, N. Y.

IMPROVEMENT IN SELF-ACTING BLOW-PIPE LAMPS.

Specification forming part of Letters Patent No. 8,324, dated August 26,1851.

To all whom, it may concern:

Be it known that I, DAVID W. C. MOCLOS- KEY, of the city, county, andState of New York, have invented a new and Improved Self-ActingBlow-Pipe Lamp; and Ido hereby declare the following to be a full andexact description of the same.

The nature of my invention consists in the application to the ordinaryself-acting blowpipe lamp of a safety-valve and escape-pipein such amanner as to regulate the pressure of the gas in the gas-chamber, andthereby prevent any accident with the lamp, and alsoin combining withthe blow-pipe a cut-ott' or stopcock, for the purpose of diverting thecurrent of gas through the escape-pipe and of regulating the volume ofgas passing through the blow-pipe.

To describe my invention more particularly, I will refer to theaccompanying drawings, making apart of this specification,the sameletters in the several drawings referring to the same parts whereverthey occur.

Figure l is a side elevation of the blow-pipe lamp. Fig. 2 is a cutsection of the same, except the rod for turning the stop-cock and aportion of the upper part of the escape-pipe, which is represented asbroken off to expose the safety-valve. Fig. 3 is a horizontal view ofthe lamp. Fig. 4 is a View of the damper or cover of the lamp.

Letters A A is the lamp-case, made of any suitable material and sizerequired. This case is made in the form of a double cylinder, onecylinder within the other, and leaving some half an inch (more or less)space between each for the purpose of making a chamber for the alcoholor fluid used for generating the gas. `At one side of the outer cylinderis a mouth-piece, B, for filling the chamber and which may be stopperedby any suitable contrivauce, and at the opposite side is inserted theupper end of the blow-pipe G. This pipe is curved and its lower end madeto enter the side of the lamp again at a point near the bottom, and thenpass through into the interior of the lamp, and then bent up so as tocreate a vertical jet of dame underneath any basin or other vesselplaced upon the top of the lamp. In this blow-pipe, at a point near itsupper connection with the lamp, is placed a safety-valve, D. This valveis made -in the usual form, having a rod, d, att-ached to the upper sideof the valve, and passing through a screw-cap on the head of the case orbox in which the valve acts. Upon the head of this valve-rod an ordinaryweighted lever, E, is made to rest to hold the pistonvalve down, exceptwhen the pressure of the gas is greater than the weight on the end ofthe lever, when it will rise and allow the gas to escape through theescape-pipe F, inserted in the side of the valve case or box. Thisescape-pipe is inserted for the double purpose of relieving or carryingoff the escape gas and for the making an independent blow-pipe for aspirit-lamp where the convenienceot the other arrangement would notadmit of its being used. To accomplish this independent blow-pipe-actionthe valve or stop-cock G, in the lower end of the blow-pipe C, is turnedor shut off, so as to prevent thejet of gas escaping by the verticalpipe in the interior of the lamp. The gas then reacts on thesafetyvalve, and, forcing it from off its seat, allows the gas to escapeby the escape-pipe under any regulated pressure that may be required.

H is the handle of the stop-cock.

.I is the damper or cover for putting out the lamp.

The operation of this lamp is that when it is required for use it isfirst requisite to lill the chamber between the outer and inner casingsof the lamp with alcohol or other fluid and then stopper it up tight.When this has been done, the interior of the lamp is then filled withthe alcohol to near the top of the vertical end of the blow'pipe, andthen by a match is ignited. Immediately on ignition the alcohol confinedbetween the casings of the lamp begins to vaporize and passes off through the blow-pipe and causes 'the iiame in the lamp to jet up withincreased force. Should gering the lamp.

the jet from the escape-pipe, the stop-cock is l The use ofthesafety-*valve and escape-pipe turned off entirely, when the Whole forceof i and stop-cock, inoombiuation with the blowthe gas is divertedthrough the escape-pipe. pipe of a self-acting blow-pipeiamp, substan-Having now described the mode of constructially as hereinbefore setforth.

tion and operation of my improved lamp, I `D. W. C. MCCLOSKEY.. willproceed to state what I claim and desire Vtuesses:

to secure by Letters Patent'of the United NATHL. R. HOXIE,

States- C. RESSLER SMITH, Jr.

